3D Printer

Hardware

Anet A8 Desktop 3D Printer

• Overall, an excellent price-performance ratio. Relatively quickly to assemble. Good printing output, tested only with PLA so far. Easy to use software.

• Power
  • [Switch]
  • [Heated Bed Power Expansion Module]

• Printing Area
  • [Plastic Hot Bed Sticker]
    • Or
  • [Heating Bed Reprap Toughened Glass Plate]

• Spare part
  • [Belt S2M GT2 Belt For 3D Printer]

• Improvement:
  • LJ18A3-8-Z/BX-5V Captor Autoleveling
  • [Y Axis Rework]
  • [Corner]

Firmware

• Arduino IDE 1.8.3
  • Select board Mega 2560 for KEYESTUDIO MKS GEN V1.4 Board
• Marlin-1.1.8
  • http://marlinfw.org/
  • Calculate Extruder thermistor PID

M303 E0 S235 C10
...
...
Recv: PID Autotune finished! Put the last Kp, Ki and Kd constants from below into Configuration.h
Recv: #define  DEFAULT_Kp 15.42
Recv: #define  DEFAULT_Ki 0.65
Recv: #define  DEFAULT_Kd 91.61

• • Calculate Heat Bed thermistor PID

M303 E-1 S95 C10
...
...
Recv: PID Autotune finished! Put the last Kp, Ki and Kd constants from below into Configuration.h
Recv: #define  DEFAULT_Kp 15.42
Recv: #define  DEFAULT_Ki 0.65
Recv: #define  DEFAULT_Kd 91.61

• • configuration files
    • configuration.h Marlin configuration.h
    • configuration.h Marlin configuration_adv.h
  • Detail Changes
    • configuration.h
    • Baud Rate

//###Nr001 #define BAUDRATE 250000
#define BAUDRATE 115200

• • • MotherBoard

#ifndef MOTHERBOARD
  //###Nr001 #define MOTHERBOARD BOARD_RAMPS_14_EFB
  #define MOTHERBOARD BOARD_ANET_10
#endif

• • • Filament

//###Nr001#define DEFAULT_NOMINAL_FILAMENT_DIA 3.0
#define DEFAULT_NOMINAL_FILAMENT_DIA 1.75

• • • Activate Temperature Sensor Extruder and Bed

//###Nr001#define TEMP_SENSOR_0 1
#define TEMP_SENSOR_0 5
//###Nr001#define TEMP_SENSOR_BED 0 
#define TEMP_SENSOR_BED 5

• • • Increase Temp Residency

//###Nr001 #define TEMP_RESIDENCY_TIME 6  // (seconds)
#define TEMP_RESIDENCY_TIME 10  // (seconds)

• • • Reduce Max Bed Temp

//###Nr001 #define BED_MAXTEMP 150
#define BED_MAXTEMP 130

• • • Increase PID Functional Range

//###Nr001 #define PID_FUNCTIONAL_RANGE 10 // If the temperature difference between the target temperature and the actual temperature
#define PID_FUNCTIONAL_RANGE 15 // is more than PID_FUNCTIONAL_RANGE then the PID will be shut off and the heater will be set to min/max.

• • • Add My Own PID value based on the automated calculation

//###Nr001 ANET A8 Customized Value
//###Nr001  #define  DEFAULT_Kp 21.0
//###Nr001  #define  DEFAULT_Ki 1.25
//###Nr001  #define  DEFAULT_Kd 86.0 
#define  DEFAULT_Kp 15.42
#define  DEFAULT_Ki 0.65
#define  DEFAULT_Kd 91.61

• • • Enable Bed Limit Switch

//###Nr001 
#define BED_LIMIT_SWITCHING

• • • Change ENDSTOP_INVERTING

// Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup).
//###Nr001 #define X_MIN_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
#define X_MIN_ENDSTOP_INVERTING true // set to true to invert the logic of the endstop.
//###Nr001 #define Y_MIN_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
#define Y_MIN_ENDSTOP_INVERTING true // set to true to invert the logic of the endstop.
//###Nr001 #define Z_MIN_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
#define Z_MIN_ENDSTOP_INVERTING true // set to true to invert the logic of the endstop.

#define X_MAX_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
#define Y_MAX_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
#define Z_MAX_ENDSTOP_INVERTING false // set to true to invert the logic of the endstop.
//###Nr001 #define Z_MIN_PROBE_ENDSTOP_INVERTING false // set to true to invert the logic of the probe.
#define Z_MIN_PROBE_ENDSTOP_INVERTING true // set to true to invert the logic of the probe.

// Enable this feature if all enabled endstop pins are interrupt-capable.
// This will remove the need to poll the interrupt pins, saving many CPU cycles.
//###Nr001
#define ENDSTOP_INTERRUPTS_FEATURE

• • • Setup Stepper Direction.

// Invert the stepper direction. Change (or reverse the motor connector) if an axis goes the wrong way.
#define INVERT_X_DIR false
//###Nr001 #define INVERT_Y_DIR true
#define INVERT_Y_DIR false
//###Nr001 #define INVERT_Z_DIR false
#define INVERT_Z_DIR true

• • • Adjust Steps Per Unit (steps / mm)

//###Nr001 #define DEFAULT_AXIS_STEPS_PER_UNIT   { 80, 80, 4000, 500 }
#define DEFAULT_AXIS_STEPS_PER_UNIT   {100,  100, 400, 100}

/**
 * Default Max Feed Rate (mm/s)
 * Override with M203
 *                                      X, Y, Z, E0 [, E1[, E2[, E3[, E4]]]]
 */
//###Nr001 #define DEFAULT_MAX_FEEDRATE          { 300, 300, 5, 25 }
#define DEFAULT_MAX_FEEDRATE          {400, 400, 8, 50}

/**
 * Default Max Acceleration (change/s) change = mm/s
 * (Maximum start speed for accelerated moves)
 * Override with M201
 *                                      X, Y, Z, E0 [, E1[, E2[, E3[, E4]]]]
 */
//###Nr001 #define DEFAULT_MAX_ACCELERATION      { 3000, 3000, 100, 10000 }
#define DEFAULT_MAX_ACCELERATION      { 2000, 2000, 100, 10000 }

• • • Adjust Accelerations

//###Nr001 #define DEFAULT_ACCELERATION          3000    // X, Y, Z and E acceleration for printing moves
#define DEFAULT_ACCELERATION          400     // X, Y, Z and E acceleration for printing moves
//###Nr001 #define DEFAULT_RETRACT_ACCELERATION  3000    // E acceleration for retracts
#define DEFAULT_RETRACT_ACCELERATION  1000    // E acceleration for retracts
//###Nr001 #define DEFAULT_TRAVEL_ACCELERATION   3000    // X, Y, Z acceleration for travel (non printing) moves
#define DEFAULT_TRAVEL_ACCELERATION   1000    // X, Y, Z acceleration for travel (non printing) moves

• • • Define Printer Characteristics

// The size of the print bed
//###Nr001 #define X_BED_SIZE 200
#define X_BED_SIZE 220
//###Nr001 #define Y_BED_SIZE 200
#define Y_BED_SIZE 220

// Travel limits (mm) after homing, corresponding to endstop positions.
//###Nr001 #define X_MIN_POS 0
#define X_MIN_POS     -33
//###Nr001 #define Y_MIN_POS 0
#define Y_MIN_POS     -10
//###Nr001 #define Z_MAX_POS 200
#define Z_MAX_POS     240

• • • Perform Z Autohome on the bed Z_SAFE_HOMING

// Use "Z Safe Homing" to avoid homing with a Z probe outside the bed area.
//###Nr001
#define Z_SAFE_HOMING

• • • Enable SD Card

//###Nr001 
#define SDSUPPORT

• • • Enable LCD for Anet A8

//###Nr001 
#define ZONESTAR_LCD

• • • Setup Autoleveling

//###Nr001
#define FIX_MOUNTED_PROBE

//###Nr001
#define AUTO_BED_LEVELING_LINEAR

//###Nr001  #define G26_MESH_VALIDATION   // Enable G26 mesh validation

//###Nr001 #define GRID_MAX_POINTS_X 3
#define GRID_MAX_POINTS_X 4

• • • Adjust Probe

// Set the boundaries for probing (where the probe can reach).
//###Nr001 #define LEFT_PROBE_BED_POSITION 15
#define LEFT_PROBE_BED_POSITION 20
//###Nr001 #define RIGHT_PROBE_BED_POSITION 170
#define RIGHT_PROBE_BED_POSITION 195
//###Nr001 #define FRONT_PROBE_BED_POSITION 20
#define FRONT_PROBE_BED_POSITION 30
#define BACK_PROBE_BED_POSITION 190

SoftWare

Cura

Setup

Machine Setup

• Printer Setting

x: 220
Y: 220
Z: 240

• Print Head Setting

X min: 0
Y min: 0
X max: 0
y max: 0

• Ganty height: 0
• Nozzle size: .04

• Machine Center is Zero: Not Selected
• Heated Bed  : Select

• Start GCode

G21 ;metric values
G90 ;absolute positioning
M82 ;set extruder to absolute mode
M107 ;start with the fan off
G28 X0 Y0 ;move X/Y to min endstops
G28 Z0 ;move Z to min endstops
G29 ;Autoleveling
G1 Z15.0 F9000 ;move the platform down 15mm
G92 E0 ;zero the extruded length
G1 F200 E3 ;extrude 3mm of feed stock
G92 E0 ;zero the extruded length again
G1 F9000
M117 Printing...

• End GCode

M104 S0 ;extruder heater off
M140 S0 ;heated bed heater off (if you have it)
G91 ;relative positioning
G1 E-1 F300  ;retract the filament a bit before lifting the nozzle, to release some of the pressure
G1 Z+0.5 E-5 X-20 Y-20 F9000 ;move Z up a bit and retract filament even more
G28 X0 Y0 ;move X/Y to min endstops, so the head is out of the way
M84 ;steppers off
G90 ;absolute positioning

OctoPrint

Alias ll

sed -i -e '$ a alias ll="ls -alF"' /etc/bash.bashrc

Network

• Disable haproxy (no need as using Apache2 proxy)

systemclt disable haproxy

• Setup octoprint python program for listening 0.0.0.0
  • Update the address in /etc/systemd/system/octoprint.service

[Service]
Environment="HOST=0.0.0.0"
Environment="PORT=5000"

• Change Webcam listner to 0.0.0.0 #
  • Add the following into /boot/octopi.txt

camera_http_options="-n --listen 0.0.0.0"

Switch On/Off

• In /etc/init.d/octoprint, add the following before RETVAL="$?"

gpio export 18 out

• Add switch on off

/home/pi/.octoprint/config.yaml

system:
  actions:
  - action: led on
    command: gpio -g write 18 1
    name: Turn on the led
  - action: led off
    command: gpio -g write 18 0
    confirm: You are about to turn off the led.
    name: Turn off the led

Stream On/Off

• Add switch on off

/home/pi/.octoprint/config.yaml

system:
  actions:
  - action: streamon
    command: sudo /bin/systemctl start webcamd
    confirm: false
    name: Start video stream
  - action: streamoff
    command: sudo /bin/systemctl stop webcamd
    confirm: true
    name: Stop video stream

• Add pi execution without password in /etc/sudoers

pi ALL=(ALL) NOPASSWD: ALL
or 
pi ALL=(ALL) NOPASSWD: /bin/systemctl

Z-Offset

• Display and change Z-Offset Value

/home/pi/.octoprint/config.yaml

controls:
- children:
  - command: M628
    default: ''
    name: Get
    regex: z zero offset value:(?P<offset>\d+(\.\d*))
    template: 'Current: {offset} mm'
    width: '5'
  - command: M628 Z%(offset)s
    input:
    - default: '0.00'
      name: New (mm)
      parameter: offset
      slider: false
    name: Set
    width: '5'
  - command: G28 Z0
    name: Home Z
    width: '2'
  collapsed: true
  layout: horizontal_grid
  name: Adjust Z Offset

Slic3r

• Configuration file
  • Cura 15 configuration file File:Configuration file for Cura-15.04.ini

• slic3r_install.sh

#!/bin/sh

 echo "Shell script created by Javier Martínez Arrieta for Slic3r installation\n"
 #Ask the user for a version
 echo "Please indicate which version you desire to be installed (e.g. 1.1.7)"
 read version
 echo "The installation of Slic3r takes a long time. PLease be patient"
 cd $HOME
 echo "Installing required libraries and dependencies..."
 sudo apt-get install git libboost-system-dev libboost-thread-dev git-core build-essential libgtk2.0-dev libwxgtk2.8-dev libwx-perl libmodule-build-perl libnet-dbus-perl cpanminus libextutils-cbuilder-perl gcc-4.7 g++-4.7 libwx-perl libperl-dev
 sudo cpanm AAR/Boost-Geometry-Utils-0.06.tar.gz Math::Clipper Math::ConvexHull Math::ConvexHull::MonotoneChain Math::Geometry::Voronoi Math::PlanePath Moo IO::Scalar Class::XSAccessor Growl::GNTP XML::SAX::ExpatXS PAR::Packer
 echo "Cloning Slic3r repository..."
 git clone https://github.com/alexrj/Slic3r.git
 cd Slic3r
 git checkout $version
 echo "Building and testing Scli3r..."
 sudo perl Build.PL
 echo "If everything was installed properly,you should be able to run Slic3r with the command ./slic3r.pl"

Disable under power warning

• edit /boot/config.txt and add the following lines at the end

#Disable under voltage warnings
avoid_warnings=1
avoid_warnings=2

Terminal Gcode Commande

Adjust Z Offset

M851 Z0; // Set the Z offset to zero height
G28;     // Home Z in the middle of the bed
G1 Z0;   // This will move the head to zero height;
M211 S0; // This will disable the end stops so that you 
         // will be able to proceed lower than Z=0

Now adjust Z height (note the negative Z height)

M851 Z-1.23; // Define the Z offset
M500;        // Store the settings
M211 S1;     // Enable the end stops again

-1.23 is a fictive value that should be replaced by your own value.

Extruder Step

• Display current value

M503 // Display current Step values

• M92 Exyyy (x=Extruder number 0) (yyy=Step value mn)

M92 E0206; // Define the E0 Step value 206

• Resets steps-per-unit for all axes to the values from DEFAULT_AXIS_STEPS_PER_UNIT

M502

• Save Value

M500

Adjust PID

• Calculate PID for extruder for 220 degre 10 Cycle

M303 E0 S220 C8

• Change Extruder PID value

220 Degree

M301 P30.22 I2.48 D92.22
M301 P25 I1.8  D92

230 Degree

M301 P18.00 I1.2 D80
M301 P13.00 I1 D80

• Save Setting

M500

• PID Autotune for bed

M303 E-1 S60 C8

• Change Bed PID value

M304 P167.05 I31.37 D222.38